Optical imaging lens

Abstract

This application discloses an optical imaging lens, including first and second lens groups arranged sequentially from the object side to the image side along the optical axis. The first lens group is housed in a first lens barrel and includes first and second lenses; the second lens group is housed in a second lens barrel and includes third to sixth lenses; the first to sixth lenses are arranged sequentially from the object side to the image side along the optical axis; a third support member is provided between the third and fourth lenses, contacting the object side of the fourth lens; a fourth support member is provided between the fourth and fifth lenses, contacting the object side of the fifth lens; and a fourth auxiliary support member is also provided between the fourth and fifth lenses, contacting the object side of the fourth support member. The center thickness CP4 of the fourth support member, the center thickness CP4b of the fourth auxiliary support member, the axial distance SAG42 from the intersection of the image side of the fourth lens and the optical axis to the vertex of the non-transparent portion of the image side of the fourth lens, and the axial distance SAG51 from the intersection of the object side of the fifth lens and the optical axis to the vertex of the non-transparent portion of the object side of the fifth lens satisfy: -2 < (CP4 + CP4b) / (SAG42 + SAG51) < 1.

Description

[0001] Divisional application statement

[0002] This application is a divisional application of Chinese invention patent application filed on February 26, 2024, entitled "Optical Imaging Lens" and with application number 202410210951.5. Technical Field

[0003] This application relates to the field of optical components, and more specifically, to an optical imaging lens. Background Technology

[0004] With the rapid development of mobile imaging, simple autofocus functions can no longer meet consumers' demands for high-end smartphone photography performance. To improve the flexibility and convenience of photography, lenses need to be able to continuously adjust the focal length within a certain range while maintaining a fixed image size and position during zooming, thus ensuring image quality, enabling faster shooting and clearer results.

[0005] However, since continuous zoom lenses are typically composed of multiple groups of mechanical structures, their large size and weight have become a pain point in the industry. For zoom lenses that include at least two lens groups, with the second group having the largest height and the most concentrated number of lenses, the design often involves constraints on the second group to minimize the overall size of the lens. However, while effectively limiting the design height and imaging conditions of the second group, this can lead to problems such as excessive thickness-to-weight ratio and excessive surface curvature in key lenses within the second lens group. This results in lens interference after assembly and the inability of lens proportional parameters to meet existing manufacturing processes, severely impacting lens optical performance and product yield. Summary of the Invention

[0006] The present application provides an optical imaging lens, which may include a first lens group and a second lens group sequentially arranged from the object side to the image side along the optical axis, and further includes a plurality of supporting members. The first lens group is accommodated in a first lens barrel and includes a first lens and a second lens; the second lens group is accommodated in a second lens barrel and includes a third lens, a fourth lens, a fifth lens and a sixth lens; the first lens to the sixth lens are sequentially arranged from the object side to the image side along the optical axis; the plurality of supporting members include: a third supporting member located between the third lens and the fourth lens, the image side surface of which is at least partially in contact with the object side surface of the fourth lens; a fourth supporting member located between the fourth lens and the fifth lens, the image side surface of which is at least partially in contact with the object side surface of the fifth lens; and the optical imaging lens satisfies: 0.5 < LB / F2 < 1.5, 1.6 < |f4 / F2| < 1.8, and 0.5 < EP34 / |SAG41+SAG42| < 2, wherein LB is the maximum height of the second lens barrel, F2 is the combined focal length of the second lens group, f4 is the effective focal length of the fourth lens, EP34 is the distance on the optical axis from the image side surface of the third supporting member to the object side surface of the fourth supporting member, SAG41 is the on-axis distance from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the object side surface of the fourth lens, and SAG42 is the on-axis distance from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the image side surface of the fourth lens.

[0007] In one embodiment, the first lens and the second lens have opposite positive and negative optical powers; the plurality of supporting members further include: a first supporting member located between the first lens and the second lens, the image side surface of which is at least partially in contact with the object side surface of the second lens; the inner diameter d1s of the object side surface of the first supporting member, the effective focal length f1 of the first lens and the effective focal length f2 of the second lens satisfy: 0.2 < d1s / (f1+f2) < 0.4.

[0008] In one embodiment, the central thickness CT1 of the first lens on the optical axis, the central thickness CT2 of the second lens on the optical axis and the maximum height LA of the first lens barrel satisfy: 0.4 < (CT1+CT2) / LA < 0.5.

[0009] In one embodiment, the inner diameter d3s of the object side surface of the third supporting member, the effective focal length f3 of the third lens, the inner diameter d3m of the image side surface of the third supporting member and the effective focal length f4 of the fourth lens satisfy: 0.5 < d3s / f3+d3m / f4 < 1.5.

[0010] In one embodiment, the plurality of bearing members further includes: a third auxiliary bearing member located between the third lens and the fourth lens, the image side of which is at least partially in contact with the object side of the third bearing member; the center thickness CP3 of the third bearing member, the center thickness CP3b of the third auxiliary bearing member, the center thickness CT3 of the third lens on the optical axis and the center thickness CT4 of the fourth lens on the optical axis satisfy: 0.1 < (CP3 + CP3b) / (CT3 + CT4) < 0.4.

[0011] In one embodiment, the plurality of bearing members further includes: a fourth auxiliary bearing member located between the fourth lens and the fifth lens, wherein its image-side surface is at least partially in contact with the object-side surface of the fourth bearing member; the center thickness CP4 of the fourth bearing member, the center thickness CP4b of the fourth auxiliary bearing member, the axial distance SAG42 from the intersection of the image-side surface of the fourth lens and the optical axis to the vertex of the non-transparent portion of the image-side surface of the fourth lens, and the axial distance SAG51 from the intersection of the object-side surface of the fifth lens and the optical axis to the vertex of the non-transparent portion of the object-side surface of the fifth lens satisfy: -2<(CP4+CP4b) / (SAG42+SAG51)<1.

[0012] In one embodiment, the plurality of bearing members further includes: a fifth bearing member located between the fifth lens and the sixth lens, wherein its image-side surface is at least partially in contact with the object-side surface of the sixth lens; the outer diameter D5m of the image-side surface of the fifth bearing member, the inner diameter d5m of the image-side surface of the fifth bearing member, and the effective radius DT61 of the light-transmitting portion of the object-side surface of the sixth lens satisfy: 0.3 < (D5m - d5m) / DT61 < 1.

[0013] In one embodiment, the optical imaging lens further includes a third lens group and a third lens barrel, the third lens group being located on the image side of the second lens group and housed within the third lens barrel; the optical power of the first lens group is negative, and the optical power of the second lens group is positive; the maximum height L of the distance from the object-side end face of the first lens barrel to the image-side end face of the third lens barrel on the optical axis, the combined focal length F1 of the first lens group, and the combined focal length F3 of the third lens group satisfy: -0.8 <L / (F1+F2+F3)<0.5。

[0014] In one embodiment, the plurality of bearing members further includes: a fifth bearing member located between the fifth lens and the sixth lens, wherein its image-side surface is at least partially in contact with the object-side surface of the sixth lens; the distance EP45 between the image-side surface of the fourth bearing member and the object-side surface of the fifth bearing member on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, and the Abbe number V5 of the fifth lens satisfy: 20 <EP45 / CT5×V5<50。

[0015] In one embodiment, the optical imaging lens further comprises a third lens group and a third lens barrel, the third lens group is located on the image side of the second lens group and is accommodated in the third lens barrel; the third lens group comprises a seventh lens; where distance EPAB between the image side surface of the first lens barrel and the object side surface of the second lens barrel on the optical axis, air gap T23 between the second lens and the third lens on the optical axis, distance EPBC between the image side surface of the second lens barrel and the object side surface of the third lens barrel on the optical axis, and air gap T67 between the sixth lens and the seventh lens on the optical axis satisfy: 2<EPAB / T23+EPBC / T67<6.

[0016] In one embodiment, distance EPAB between the image side surface of the first lens barrel and the object side surface of the second lens barrel on the optical axis, on-axis distance SAG22 from an intersection of the image side surface of the second lens and the optical axis to a vertex of a non-light-transmitting portion of the image side surface of the second lens, and on-axis distance SAG31 from an intersection of the object side surface of the third lens and the optical axis to a vertex of a non-light-transmitting portion of the object side surface of the third lens satisfy: 0.2<EPAB / (SAG22+SAG31)<0.8.

[0017] In one embodiment, the optical imaging lens further comprises a third lens group and a third lens barrel, the third lens group is located on the image side of the second lens group and is accommodated in the third lens barrel; the third lens group comprises a seventh lens; where minimum inner diameter dcs of an object-side end of the third lens barrel, curvature radius R13 of the object side surface of the seventh lens, minimum inner diameter dcm of an image-side end of the third lens barrel, and curvature radius R14 of the image side surface of the seventh lens satisfy: -1<dcs / R13<0.8 and -0.5<dcm / R14<0.6.

[0018] In one embodiment, combined focal length F1 of the first lens group and maximum height LA of the first lens barrel on the optical axis satisfy: -8<F1 / LA<-3.

[0019] In one embodiment, the optical imaging lens further comprises a third lens group and a third lens barrel, the third lens group is located on the image side of the second lens group and is accommodated in the third lens barrel; the third lens group comprises a seventh lens; the optical imaging lens implements focusing by changing the air gap between the second lens and the third lens on the optical axis and the air gap between the sixth lens and the seventh lens on the optical axis.

[0020] The optical imaging lens according to the embodiment of the present application at least comprises a first lens group and a second lens group which are sequentially arranged along the optical axis from the object side to the image side, the two lens groups being respectively assembled in a first lens barrel and a second lens barrel; the first lens group comprises a first lens and a second lens; the second lens group comprises a third lens, a fourth lens, a fifth lens and a sixth lens; the lens further comprises a plurality of supporting members, wherein a third supporting member is located between the third lens and the fourth lens, and the image side surface of the third supporting member is at least partially in contact with the object side surface of the fourth lens, and a fourth supporting member is located between the fourth lens and the fifth lens, and the image side surface of the fourth supporting member is at least partially in contact with the object side surface of the fifth lens; and the maximum height LB of the second lens barrel and the combined focal length F2 of the second lens group satisfy 0.5<LB / F2<1.5, the effective focal length f4 of the fourth lens and the combined focal length F2 of the second lens group satisfy 1.6<|f4 / F2|<1.8. On this premise, controlling that the distance EP34 on the optical axis from the image side surface of the third supporting member to the object side surface of the fourth supporting member, the on-axis distance SAG41 from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the object side surface of the fourth lens, and the on-axis distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the image side surface of the fourth lens satisfy 0.5<EP34 / |SAG41+SAG42|<2 can achieve that the design height of the second lens group is effectively limited, the imaging conditions are satisfied, which is beneficial to the miniaturization of the entire lens, and at the same time, the thickness-to-thickness ratio of the fourth lens can be reasonably constrained, the surface shape and contour curvature of the fourth lens are ensured, the surface shape sensitivity thereof is reduced, which is beneficial to the injection molding of the fourth lens, the risk of weld lines caused by uneven lens shape and excessive thickness-to-thickness ratio can be improved, the appearance risk and stray light risk can be greatly avoided, thereby improving the imaging quality. Description of Drawings

[0021] Other features, objects and advantages of the present application will become more apparent through the following detailed description of non-limiting embodiments with reference to the accompanying drawings. In the drawings:

[0022] Figure 1 and Figure 2 respectively show schematic diagrams of the structure and partial relevant parameters of an optical imaging lens according to an exemplary embodiment of the present application;

[0023] Figure 3 shows a structural schematic diagram of an optical imaging lens according to Embodiment 1 of the present application;

[0024] Figure 4 shows a structural schematic diagram of an optical imaging lens according to Embodiment 2 of the present application;

[0025] Figure 5 shows a structural schematic diagram of an optical imaging lens according to Embodiment 3 of the present application;

[0026] Figure 6, Figure 7 and Figure 8 The on-axis chromatic aberration curves, astigmatism curves, and distortion curves of the optical imaging lenses according to Embodiments 1, 2, and 3 of this application are shown respectively.

[0027] Figure 9 A schematic diagram of the structure of an optical imaging lens according to Embodiment 4 of this application is shown;

[0028] Figure 10 A schematic diagram of the structure of an optical imaging lens according to Embodiment 5 of this application is shown;

[0029] Figure 11 A schematic diagram of the structure of an optical imaging lens according to Embodiment 6 of this application is shown;

[0030] Figure 12 , Figure 13 and Figure 14 The on-axis chromatic aberration curves, astigmatism curves, and distortion curves of the optical imaging lenses according to Embodiments 4, 5, and 6 of this application are shown respectively.

[0031] Figure 15 A schematic diagram of the mold flow analysis for optimizing the front lens filling process is shown;

[0032] Figure 16 A schematic diagram of the overall wavefront curve of the optimized front lens is shown;

[0033] Figure 17 A schematic diagram showing the analysis results of the optimized front lens indicating a risk of weld lines is presented.

[0034] Figure 18 A schematic diagram of the mold flow analysis of the optimized lens filling process is shown;

[0035] Figure 19 A schematic diagram of the overall wavefront curve of the optimized lens is shown; and

[0036] Figure 20 The diagram shows the results of the analysis of the optimized lens, indicating that there are no weld lines. Detailed Implementation

[0037] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0038] It should be noted that in this specification, the terms "first," "second," "third," etc., are used only to distinguish one feature from another and do not imply any limitation on the features. Therefore, without departing from the teachings of this application, the first lens discussed below may also be referred to as the second lens or the third lens.

[0039] In the accompanying drawings, the thickness, size, and shape of the lenses have been slightly exaggerated for ease of illustration. Specifically, the shapes of the spherical or aspherical surfaces shown in the drawings are illustrated by way of example. That is, the shapes of the spherical or aspherical surfaces are not limited to those shown in the drawings. The drawings are for illustrative purposes only and are not strictly to scale.

[0040] In this paper, the paraxial region refers to the region near the optical axis. If the lens surface is convex and the location of the convexity is not defined, it means that the lens surface is convex at least in the paraxial region; if the lens surface is concave and the location of the concaveness is not defined, it means that the lens surface is concave at least in the paraxial region. The surface shape in the paraxial region can be determined according to methods commonly used in the art, such as using the sign of the R value (R refers to the radius of curvature of the paraxial region) to determine concavity or convexity. In this paper, the surface of each lens closest to the subject is called the object-side surface of the lens, and the surface of each lens closest to the imaging plane is called the image-side surface of the lens. For the object-side surface, when the R value is positive, it is determined to be convex, and when the R value is negative, it is determined to be concave; for the image-side surface, when the R value is positive, it is determined to be concave, and when the R value is negative, it is determined to be convex.

[0041] It should also be understood that the terms "comprising," "including," "having," "containing," and / or "comprising," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. Furthermore, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features, not individual elements in the list. Additionally, when describing embodiments of this application, the word "may" is used to mean "one or more embodiments of this application." And the term "exemplary" is intended to refer to an example or illustration.

[0042] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms (e.g., those defined in common dictionaries) shall be interpreted as having a meaning consistent with their meaning in the context of the relevant art and shall not be interpreted in an idealized or overly formalized sense, unless expressly so specified herein.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. The following embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this application. It should be pointed out that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] The features, principles and other aspects of this application are described in detail below.

[0045] An optical imaging lens according to an exemplary embodiment of this application may include at least a first lens group, a second lens group, and a plurality of support members, wherein the first lens group and the second lens group may be arranged sequentially from the object side to the image side along the optical axis. The optical imaging lens may also include a first lens barrel and a second lens barrel, which are also arranged sequentially from the object side to the image side along the optical axis, wherein the first lens group may be mounted in the first lens barrel and the second lens group may be mounted in the second lens barrel.

[0046] In an exemplary embodiment, the first lens group may include a first lens and a second lens arranged sequentially from the object side to the image side along the optical axis; the second lens group may include a third lens, a fourth lens, a fifth lens, and a sixth lens arranged sequentially from the object side to the image side along the optical axis.

[0047] In an exemplary embodiment, the plurality of bearing members may include: a third bearing member located between the third lens and the fourth lens and having its image side at least partially in contact with the object side of the fourth lens; and a fourth bearing member located between the fourth lens and the fifth lens and having its image side at least partially in contact with the object side of the fifth lens.

[0048] In an exemplary embodiment, the optical imaging lens of this application can satisfy the condition 1.6<|f4 / F2|<1.8, where LB is the maximum height of the second lens barrel on the optical axis and F2 is the combined focal length of the second lens group.

[0049] In an exemplary embodiment, the optical imaging lens of this application can satisfy the condition 1.6 < |f4 / F2| < 1.8, where f4 is the effective focal length of the fourth lens and F2 is the combined focal length of the second lens group.

[0050] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional expression 0.5<EP34 / |SAG41+SAG42|<2, wherein EP34 is the distance on the optical axis from the image-side surface of the third supporting member to the object-side surface of the fourth supporting member, SAG41 is the on-axis distance from the intersection of the object-side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the object-side surface of the fourth lens, and SAG42 is the on-axis distance from the intersection of the image-side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the image-side surface of the fourth lens.

[0051] According to an embodiment of the present application, the optical imaging lens at least comprises a first lens group and a second lens group arranged in sequence from the object side to the image side along the optical axis, the two lens groups are respectively assembled in a first lens barrel and a second lens barrel; the first lens group comprises a first lens and a second lens; the second lens group comprises a third lens, a fourth lens, a fifth lens and a sixth lens; the lens further comprises a plurality of supporting members, wherein the third supporting member is located between the third lens and the fourth lens, the image-side surface of the third supporting member is at least partially in contact with the object-side surface of the fourth lens, and the fourth supporting member is located between the fourth lens and the fifth lens, the image-side surface of the fourth supporting member is at least partially in contact with the object-side surface of the fifth lens; and the maximum height LB of the second lens barrel and the combined focal length F2 of the second lens group satisfy 0.5<LB / F2<1.5, the effective focal length f4 of the fourth lens and the combined focal length F2 of the second lens group satisfy 1.6<|f4 / F2|<1.8. On this premise, controlling that EP34, which is the distance on the optical axis from the image-side surface of the third supporting member to the object-side surface of the fourth supporting member, SAG41, which is the on-axis distance from the intersection of the object-side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the object-side surface of the fourth lens, and SAG42, which is the on-axis distance from the intersection of the image-side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the image-side surface of the fourth lens, satisfy 0.5<EP34 / |SAG41+SAG42|<2, can achieve that the design height of the second lens group can be effectively limited, the imaging condition is satisfied, which is beneficial to the miniaturization of the entire lens, and at the same time, the thickness-to-thickness ratio of the fourth lens can be reasonably constrained, the surface shape and contour curvature of the fourth lens are guaranteed, the surface shape sensitivity thereof is reduced, which is beneficial to the injection molding of the fourth lens, can reduce the risk of weld lines caused by uneven lens shape and excessive thickness-to-thickness ratio, can greatly avoid the appearance risk and stray light risk, thereby improving the imaging quality.

[0052] Since a continuous zoom lens is usually composed of multiple groups of mechanical structures, the problems of its large volume and large mass have become pain points in the industry. In the optical imaging lens according to the present application, the second lens group has the largest height and the most concentrated number of lenses, so designing by imposing conditional constraints on the second lens group can facilitate the miniaturization of the entire lens. Specifically, when the maximum height LB of the second lens barrel and the combined focal length F2 of the second lens group satisfy 0.5<LB / F2<1.5, and the effective focal length f4 of the fourth lens and the combined focal length F2 of the second lens group satisfy 1.6<|f4 / F2|<1.8, the design height of the second lens group can be effectively limited and the imaging requirement can be satisfied. However, since the focal length of the fourth lens is a dominant factor in the second lens group, the above conditional constraints easily cause the thickness-to-diameter ratio of the fourth lens to go out of tolerance and the surface curvature to be excessively large, which easily leads to such situations as lens interference after assembly and the proportional parameters of the lens failing to meet the requirements of existing molding processes. Therefore, according to the embodiments of the present application, the optical imaging lens controls that the distance EP34 on the optical axis from the image side surface of the third supporting member to the object side surface of the fourth supporting member, the on-axis distance SAG41 from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the object side surface of the fourth lens, and the on-axis distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the image side surface of the fourth lens satisfy 0.5<EP34 / |SAG41+SAG42|<2. This can ensure the surface shape and contour curvature of the fourth lens while satisfying the miniaturization design of the lens group, reduce the surface shape sensitivity of the fourth lens, facilitate injection molding of the lens, reduce the risk of weld lines caused by uneven lens shape and excessive thickness-to-diameter ratio, greatly avoid appearance risks and stray light risks, and thereby improve imaging quality.

[0053] Refer to the attached Figures 15 to 20 , wherein, Figure 15 , Figure 16 and Figure 17 respectively show a schematic diagram of mold flow analysis of the filling process of the fourth lens, a schematic diagram of the overall wavefront curve, and a schematic diagram of a situation with weld line risk in simulation results before optimization, that is, when EP34, SAG41 and SAG42 do not satisfy the conditional expression 0.5<EP34 / |SAG41+SAG42|<2. As shown in Figure 15-17 , it can be concluded from the mold flow analysis results that the wavefront included angle is small during the filling process, the converging wrapping phenomenon is obvious, the wavefront curves at the edge region of the lens obviously intersect, and the simulation results show that there is a weld line risk. Figure 18 , Figure 19 and Figure 20 respectively show a schematic diagram of mold flow analysis of the filling process of the fourth lens, a schematic diagram of the overall wavefront curve and a schematic diagram of a situation where no weld line distribution exists in simulation results after optimization, that is, when EP34, SAG41 and SAG42 are controlled to satisfy the conditional expression 0.5<EP34 / |SAG41+SAG42|<2. As Figure 18-20 As shown in the mold flow analysis results, during the filling process of the lens region, the wave front of the molten glue is gentle when flowing through the lens region, with no convergence and wrapping phenomenon. The wave front curve in the effective region of the lens is gentle, there is a slight difference between the velocity at the edge and the center, and there is no weld line distribution in the simulation result. Therefore, when the optical imaging lens according to the embodiment of the present application satisfies the conditional expressions 0.5<LB / F2<1.5 and 1.6<|f4 / F2|<1.8, and simultaneously controls EP34, SAG41 and SAG42 to satisfy the conditional expression 0.5<EP34 / |SAG41+SAG42|<2, it can effectively limit the design height of the second lens group and satisfy the imaging condition, which is beneficial to the miniaturization of the entire lens. Meanwhile, it can reasonably restrict the thickness ratio of the fourth lens, ensure the surface shape and contour curvature of the fourth lens, reduce the surface shape sensitivity of the fourth lens, is beneficial to the injection molding of the fourth lens, can reduce the risk of weld lines caused by uneven lens shape and excessive thickness ratio, can greatly avoid the appearance risk and stray light risk, thereby improving the imaging quality.

[0054] In an exemplary embodiment, the optical imaging lens may further comprise a third lens group and a third lens barrel; the third lens group may be located on the image side of the second lens group, in other words, the first lens group, the second lens group and the third lens group may be arranged in sequence along the optical axis from the object side to the image side; and the third lens group may be assembled in the third lens barrel.

[0055] In an exemplary embodiment, the third lens group may comprise a seventh lens. The first lens to the seventh lens in the optical imaging lens may be arranged in sequence along the optical axis from the object side to the image side.

[0056] In an exemplary embodiment, the first lens group may have negative refractive power; the second lens group may have positive refractive power.

[0057] In an exemplary embodiment, the plurality of supporting members may further comprise: a first supporting member located between the first lens and the second lens, the image side surface of which is at least partially in contact with the object side surface of the second lens.

[0058] In an exemplary embodiment, the plurality of supporting members may further comprise: a third auxiliary supporting member located between the third lens and the fourth lens, the image side surface of which is at least partially in contact with the object side surface of the third supporting member.

[0059] In an exemplary embodiment, the plurality of supporting members may further comprise: a fourth auxiliary supporting member located between the fourth lens and the fifth lens, the image side surface of which is at least partially in contact with the object side surface of the fourth supporting member.

[0060] In an exemplary embodiment, the plurality of supporting members may further comprise: a fifth supporting member located between the fifth lens and the sixth lens, the image side surface of which is at least partially in contact with the object side surface of the sixth lens.

[0061] In an exemplary embodiment, the plurality of supporting members in the lens further includes a first supporting member located between the first lens and the second lens, wherein the image side surface of the first supporting member is at least partially in contact with the object side surface of the second lens; the first lens and the second lens have positive and negative optical powers opposite to each other; the optical imaging lens of the present application satisfies the conditional expression 0.2<d1s / (f1+f2)<0.4, wherein d1s is the inner diameter of the object side surface of the first supporting member, f1 is the effective focal length of the first lens, and f2 is the effective focal length of the second lens. By controlling the two adjacent first and second lenses to have opposite optical power signs, the aberration of the optical system can be corrected, and meanwhile the design of the focal length of the first lens group meets the requirement of the field of view size. By reasonably controlling the inner diameter of the object side surface of the first supporting member, the exit angle of the chief ray in the first lens group can be controlled, which effectively blocks non-imaging light from entering the optical system and reduces the risk of internal reflection stray light of the first and second lenses. The first supporting member is partially in contact with the second lens, which can structurally reduce the cantilever length of the first supporting member and reduce the risk of stray light and performance caused by spacer deformation.

[0062] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional expression 0.4<(CT1+CT2) / LA<0.5, wherein CT1 is the central thickness of the first lens on the optical axis, CT2 is the central thickness of the second lens on the optical axis, and LA is the maximum height of the first lens barrel on the optical axis. By reasonably limiting the central thickness of the lenses in the first lens group and the height of the first lens barrel, it is not only conducive to the miniaturization of the design of the first lens group, but also ensures that the axial clearance of the lenses is within a reasonable range, which is conducive to improving assembly stability and makes the lens perform better in reliability, especially in drop tests and roller tests.

[0063] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional expression 0.5<d3s / f3+d3m / f4<1.5, wherein d3s is the inner diameter of the object side surface of the third supporting member, f3 is the effective focal length of the third lens, d3m is the inner diameter of the image side surface of the third supporting member, and f4 is the effective focal length of the fourth lens. Through reasonable setting of the effective focal lengths of the third and fourth lenses and the inner diameter of the third supporting member, the propagation trend of light exiting from the first lens group and entering the second lens group can be effectively controlled. Meanwhile, it ensures the number and energy of light within the field of view, absorbs part of the light that may enter the lens flange structure, effectively weakens the energy of stray light spots, and ensures that the lens group obtains good imaging quality.

[0064] In an exemplary embodiment, the lens further includes a third auxiliary support located between the third lens and the fourth lens, with the image-side of the third auxiliary support in at least partial contact with the object-side of the third support. The optical imaging lens of this application satisfies the condition 0.1 < (CP3 + CP3b) / (CT3 + CT4) < 0.4, where CP3 is the center thickness of the third support, i.e., the maximum thickness of the third support in the direction along or parallel to the optical axis; CP3b is the center thickness of the third auxiliary support, i.e., the maximum thickness of the third auxiliary support in the direction along or parallel to the optical axis; CT3 is the center thickness of the third lens on the optical axis; and CT4 is the center thickness of the fourth lens on the optical axis. By controlling the third auxiliary support, the flange structure of the third lens can be completely blocked, reducing the risk of internal stray light from the third lens, and simultaneously preventing light transmission due to poor processing at the junction of the effective and ineffective diameters of the lens. By controlling CP3, CP3b, CT3, and CT4 to satisfy the condition 0.1 < (CP3 + CP3b) / (CT3 + CT4) < 0.4, the lens spacing can be uniformly distributed along the optical axis, ensuring that the lens structure uniformity is within the design specifications. This avoids local pressure sensitivity of the lens, which could lead to large changes in local surface shape after assembly and affect MTF performance.

[0065] In an exemplary embodiment, the lens further includes a fourth auxiliary support located between the fourth lens and the fifth lens, wherein the image-side surface of the fourth auxiliary support is at least partially in contact with the object-side surface of the fourth support; the optical imaging lens of this application can satisfy the condition -2<(CP4+CP4b) / (SAG42+SAG51)<1, where CP4 is the center thickness of the fourth support, that is, the maximum thickness of the fourth support in the direction along or parallel to the optical axis, CP4b is the center thickness of the fourth auxiliary support, that is, the maximum thickness of the fourth auxiliary support in the direction along or parallel to the optical axis, SAG42 is the axial distance from the intersection of the image-side surface of the fourth lens and the optical axis to the vertex of the non-transparent portion of the image-side surface of the fourth lens, and SAG51 is the axial distance from the intersection of the object-side surface of the fifth lens and the optical axis to the vertex of the non-transparent portion of the object-side surface of the fifth lens. By rationally controlling the center thicknesses CP4 and CP4b of the fourth support component and the fourth auxiliary support component, as well as the sagitta of the image side of the fourth lens and the sagitta of the object side of the fifth lens SAG42 and SAG51, it is possible to avoid the difficulty of phase correction due to excessive lens bending, and to reduce the risk of deformation caused by excessive lens bending moment after lens assembly. This is beneficial to improving assembly stability and ensuring the processing quality of individual components.

[0066] In an exemplary embodiment, the plurality of supporting members in the lens further includes a fifth supporting member located between the fifth lens and the sixth lens, and the image-side surface of the fifth supporting member is at least partially in contact with the object-side surface of the sixth lens; the optical imaging lens of the present application can satisfy the conditional expression 0.3<(D5m-d5m) / DT61<1, wherein D5m is the outer diameter of the image-side surface of the fifth supporting member, d5m is the inner diameter of the image-side surface of the fifth supporting member, and DT61 is the effective radius of the light-transmitting portion on the object-side surface of the sixth lens. By controlling the outer diameter of the image-side surface of the fifth supporting member, the inner diameter of the image-side surface of the fifth supporting member and the effective radius of the light-transmitting portion on the object-side surface of the sixth lens to satisfy the conditional expression 0.3<(D5m-d5m) / DT61<1, it is ensured that the flange portion of the sixth lens is completely blocked by the fifth supporting member. Through the light absorption effect of the light-opaque supporting member on light, stray light entering the sixth lens can be effectively blocked, and the imaging quality of the lens is improved.

[0067] In an exemplary embodiment, the optical imaging lens further includes a third lens group and a third lens barrel, the third lens group is located on the image side of the second lens group and is accommodated in the third lens barrel; the power sign of the first lens group is negative, and the power sign of the second lens group is positive; the optical imaging lens satisfies the conditional expression -0.8<L / (F1+F2+F3)<0.5, wherein L is the maximum distance on the optical axis from the object-side end surface of the first lens barrel to the image-side end surface of the third lens barrel, F1 is the combined focal length of the first lens group, F2 is the combined focal length of the second lens group, and F3 is the combined focal length of the third lens group. By controlling the ratio of the maximum distance on the optical axis from the object-side end surface of the first lens barrel to the image-side end surface of the third lens barrel to the sum of the combined focal lengths of the first lens group, the second lens group and the third lens group to be within this range, the system can not only obtain good optical imaging performance, balance optical distortion and chromatic aberration during imaging, but also limit the overall size of the lens, realize miniaturization of the lens, and make the whole device more dexterous and lightweight.

[0068] In an exemplary embodiment, the plurality of supporting members in the lens further includes a fifth supporting member located between the fifth lens and the sixth lens, and the image-side surface of the fifth supporting member is at least partially in contact with the object-side surface of the sixth lens; the optical imaging lens of the present application can satisfy the conditional expression 20<EP45 / CT5×V5<50, wherein EP45 is the distance on the optical axis from the image-side surface of the fourth supporting member to the object-side surface of the fifth supporting member, CT5 is the central thickness of the fifth lens on the optical axis, and V5 is the Abbe number of the fifth lens. Reasonable constraints on the thickness of the flange structure of the fifth lens (EP45), the central thickness of the lens and the Abbe number are conducive to balancing the dispersion and distortion of the system, and on the premise of ensuring the processing feasibility of the lens, lens materials can be reasonably selected, so that the system obtains good imaging quality.

[0069] In an exemplary embodiment, the optical imaging lens further includes a third lens group and a third lens barrel, the third lens group is located on the image side of the second lens group and is accommodated in the third lens barrel; the third lens group includes a seventh lens; the optical imaging lens satisfies the conditional expression 2<EPAB / T23+EPBC / T67<6, wherein EPAB is the distance on the optical axis from the image side surface of the first lens barrel to the object side surface of the second lens barrel, T23 is the air gap between the second lens and the third lens on the optical axis, EPBC is the distance on the optical axis from the image side surface of the second lens barrel to the object side surface of the third lens barrel, and T67 is the air gap between the sixth lens and the seventh lens on the optical axis. By controlling the distance on the optical axis from the image side surface of the first lens barrel to the object side surface of the second lens barrel, the air gap between the second lens and the third lens on the optical axis, the distance on the optical axis from the image side surface of the second lens barrel to the object side surface of the third lens barrel, and the air gap between the sixth lens and the seventh lens on the optical axis to satisfy the conditional expression 2<EPAB / T23+EPBC / T67<6, the continuous zoom function of the system can be realized, so that the focal length of the system can be continuously switched according to the shooting requirements of users, and it can be ensured that no interference occurs between optical elements and mechanical elements when the lens groups move axially during the zooming process.

[0070] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional expression 0.2<EPAB / (SAG22+SAG31)<0.8, wherein EPAB is the distance on the optical axis from the image side surface of the first lens barrel to the object side surface of the second lens barrel, SAG22 is the on-axis distance from the intersection of the image side surface of the second lens and the optical axis to the vertex of the non-light-transmitting portion of the image side surface of the second lens, and SAG31 is the on-axis distance from the intersection of the object side surface of the third lens and the optical axis to the vertex of the non-light-transmitting portion of the object side surface of the third lens. By controlling the ratio of the distance on the optical axis from the image side surface of the first lens barrel to the object side surface of the second lens barrel to the sum of the on-axis distance from the intersection of the image side surface of the second lens and the optical axis to the vertex of the non-light-transmitting portion of the image side surface of the second lens and the on-axis distance from the intersection of the object side surface of the third lens and the optical axis to the vertex of the non-light-transmitting portion of the object side surface of the third lens within this range, it can be ensured that no interference occurs to the module when the first and second lens groups are in the process of continuous zooming, at the same time, it can ensure that the first lens group has enough glue dispensing space, can ensure the strength of the assembly bearing surface of the second lens group, ensure the ejection force and assembly stability, and enable the lens assembly to obtain good reliability performance.

[0071] In an exemplary embodiment, the optical imaging lens further includes a third lens group and a third lens barrel, the third lens group is located on the image side of the second lens group and is accommodated in the third lens barrel; the third lens group includes a seventh lens; the optical imaging lens satisfies the conditional expressions -1<dcs / R13<0.8 and -0.5<dcm / R14<0.6, wherein dcs is the minimum inner diameter of the object-side end of the third lens barrel, R13 is the curvature radius of the object-side surface of the seventh lens, dcm is the minimum inner diameter of the image-side end of the third lens barrel, and R14 is the curvature radius of the image-side surface of the seventh lens. By controlling the ratio of the minimum inner diameter of the object-side end of the third lens barrel to the curvature radius of the object-side surface of the seventh lens and the ratio of the minimum inner diameter of the image-side end of the third lens barrel to the curvature radius of the image-side surface of the seventh lens within the above ranges respectively, the uniformity of the overall contour of the seventh lens can be ensured, the curvature of the surface shape of the seventh lens can be guaranteed to be smooth, problems such as poor demolding, processing steps and weld lines that may occur in processing can be effectively avoided, and internally reflected stray light generated by the seventh lens can be intercepted and eliminated through the inner diameter of the lens barrel of the third group.

[0072] In an exemplary embodiment, the optical imaging lens of the present application can satisfy the conditional expression -8<F1 / LA<-3, wherein F1 is the combined focal length of the first lens group, and LA is the maximum height of the first lens barrel on the optical axis. Through reasonable control of the focal length of the first lens group, the optical power of the system can be reasonably distributed, and performance degradation caused by excessive lens sensitivity can be effectively controlled, while ensuring a reasonable trend of light in the system. Through reasonable control of the height of the first lens barrel, the contour design can be miniaturized, the overall size of the lens can be compressed, the weight of the lens can be reduced, thereby reducing the weight of the whole device and improving user experience.

[0073] In an exemplary embodiment, the optical imaging lens further includes a third lens group and a third lens barrel, the third lens group is located on the image side of the second lens group and is accommodated in the third lens barrel; the third lens group includes a seventh lens; focusing can be achieved by the optical imaging lens through changing the air gap between the second lens and the third lens on the optical axis and the air gap between the sixth lens and the seventh lens on the optical axis, for example, reducing the gap through movement. The optical imaging lens according to the present application realizes the continuous zoom function of the system through variable increments of three lens groups along the optical axis, which is particularly suitable for photographing dynamic objects, can realize rapid switching of photographing targets from far to near, ensure clear photographing effects, and bring users a convenient photographing experience. At present, continuous zoom lenses with smaller size, higher optical performance and lower cost have become one of the development directions of mobile phone lens design, and the optical imaging lens according to the present application can better meet market demands.

[0074] In an exemplary embodiment, the first lens group can have negative optical power. The second lens group can have positive optical power. The third lens group can have positive optical power or negative optical power.

[0075] In an exemplary embodiment, the first lens may have negative optical power, and its object-side surface may be concave, as may its image-side surface. The second lens may have positive optical power, and its object-side surface may be convex, as may its image-side surface. The third lens may have positive optical power, and both its object-side and image-side surfaces may be convex. The fourth lens may have either positive or negative optical power, and its image-side surface may be convex. The fifth lens may have positive optical power. The sixth lens may have either positive or negative optical power, and its object-side surface may be concave. The seventh lens may have either positive or negative optical power.

[0076] In an exemplary embodiment, the optical imaging lens of this application may include at least one aperture stop. The aperture stop can constrain the optical path and control the light intensity. The aperture stop can be disposed at an appropriate position on the optical imaging lens; for example, the aperture stop can be disposed between the object side and the first lens group.

[0077] In an exemplary embodiment, the optical imaging lens may optionally include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0078] In an exemplary embodiment, the first to seventh lenses may include aspherical mirrors. Aspherical mirrors have better radius of curvature characteristics, which has the advantages of improving distortion aberration and astigmatism. By using aspherical mirrors, aberrations that occur during imaging can be eliminated as much as possible, thereby improving image quality.

[0079] The optical imaging lens according to the embodiment of the present application at least comprises a first lens group and a second lens group arranged in sequence along an optical axis from an object side to an image side, the two lens groups are respectively assembled in a first lens barrel and a second lens barrel; the first lens group comprises a first lens and a second lens; the second lens group comprises a third lens, a fourth lens, a fifth lens and a sixth lens; the lens further comprises a plurality of bearing members, wherein a third bearing member is located between the third lens and the fourth lens and an image side surface thereof is at least partially in contact with an object side surface of the fourth lens, and a fourth bearing member is located between the fourth lens and the fifth lens and an image side surface thereof is at least partially in contact with an object side surface of the fifth lens; and, the maximum height LB of the second lens barrel and the combined focal length F2 of the second lens group satisfy 0.5<LB / F2<1.5, the effective focal length f4 of the fourth lens and the combined focal length F2 of the second lens group satisfy 1.6<|f4 / F2|<1.8, on this premise, controlling the distance EP34 along the optical axis from the image side surface of the third bearing member to the object side surface of the fourth bearing member, the on-axis distance SAG41 from the intersection of the object side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the object side surface of the fourth lens, and the on-axis distance SAG42 from the intersection of the image side surface of the fourth lens and the optical axis to the vertex of the non-light-transmitting portion of the image side surface of the fourth lens satisfy 0.5<EP34 / |SAG41+SAG42|<2, which can effectively limit the design height of the second lens group and satisfy imaging conditions, is beneficial to the miniaturization of the entire lens, and at the same time can reasonably restrict the thickness-to-thickness ratio of the fourth lens, ensure the surface shape and contour curvature of the fourth lens, reduce its surface shape sensitivity, is beneficial to the injection molding of the fourth lens, can improve the risk of weld marks caused by uneven lens shape and excessive thickness-to-thickness ratio, can greatly avoid appearance risks and stray light risks, thereby improving imaging quality.

[0080] However, it should be understood by those skilled in the art that without departing from the technical solution claimed in the present application, the number of lenses constituting the optical imaging lens and the division of lens groups can be changed, and the number of bearing members can also be changed, so as to obtain various results and advantages described in the present specification, which is not specifically limited in the present application. For example, although the embodiment describes three lens groups with a total of seven lenses as an example, the optical imaging lens is not limited to including three lens groups and seven lenses. If required, the optical imaging lens may also include other numbers of lens groups and / or lenses. For another example, according to requirements, the optical imaging lens may also include other numbers of bearing members different from those described in the above embodiments.

[0081] Specific embodiments of the optical imaging lens applicable to the above embodiments are further described below with reference to the accompanying drawings.

[0082] Example 1

[0083] Reference is made below to Figure 3Describes an optical imaging lens according to Embodiment 1 of this application.

[0084] like Figure 3 As shown, in this embodiment, the optical imaging lens includes a first lens barrel PA, a second lens barrel PB, and a third lens barrel PC. A first lens group, including a first lens E1 and a second lens E2, is assembled in the first lens barrel PA. A second lens group, including a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6, is assembled in the second lens barrel PB. A third lens group, including a seventh lens E7, is assembled in the third lens barrel PC. The first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, and seventh lens E7 are arranged sequentially along the optical axis from the object side to the image side.

[0085] In this embodiment, the optical imaging lens further includes a plurality of support members: a first support member P1, located between the first lens E1 and the second lens E2, with its image-side surface at least partially in contact with the object-side surface of the second lens E2; a third support member P3, located between the third lens E3 and the fourth lens E4, with its image-side surface at least partially in contact with the object-side surface of the fourth lens E4; a fourth auxiliary support member P4b, located on the image-side of the fourth lens E4, with its object-side surface at least partially in contact with the image-side surface of the fourth lens E4; a fourth support member P4, located between the fourth lens E4 and the fifth lens E5 (more specifically between the fourth auxiliary support member P4b and the fifth lens E5), with its image-side surface at least partially in contact with the object-side surface of the fifth lens E5; and a fifth support member P5, located between the fifth lens E5 and the sixth lens E6, with its image-side surface at least partially in contact with the object-side surface of the sixth lens E6.

[0086] In this embodiment, the first lens E1 has negative optical power, with its object-side surface S1 being concave and its image-side surface S2 being concave. The second lens E2 has positive optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive optical power, with its object-side surface S5 being convex and its image-side surface S6 being convex. The fourth lens E4 has negative optical power, with its object-side surface S7 being concave and its image-side surface S8 being convex. The fifth lens E5 has positive optical power, with its object-side surface S9 being concave and its image-side surface S10 being convex. The sixth lens E6 has positive optical power, with its object-side surface S11 being concave and its image-side surface S12 being convex. The seventh lens E7 has negative optical power, with its object-side surface S13 being concave and its image-side surface S14 being convex.

[0087] In this embodiment, the optical imaging lens may further include, for example, a filter (not shown in the figure) located on the image side of the seventh lens E7, having an object side S15 and an image side S16, and an imaging surface S17 (not shown in the figure) located on the image side of the filter. Light from the object may, for example, pass through each surface S1 to S16 in sequence and finally be imaged on the imaging surface S17.

[0088] Table 1 shows the basic parameters of the optical imaging lens of Example 1, where the units for radius of curvature and thickness / distance are millimeters (mm).

[0089]

[0090]

[0091] Table 1

[0092] In Embodiment 1, the object-side surface and image-side surface of any one of the first lens E1 to the seventh lens E7 are aspherical surfaces, and the surface shape x of each aspherical lens can be defined using, but is not limited to, the following aspherical formula:

[0093]

[0094] Where x is the distance vector from the vertex of the aspherical surface at a height of h along the optical axis; c is the paraxial curvature of the aspherical surface, c = 1 / R (i.e., the paraxial curvature c is the reciprocal of the radius of curvature R in Table 1 above); k is the conic coefficient; Ai is the i-th order correction coefficient of the aspherical surface. Tables 2-1 and 2-2 below give the higher-order coefficients A4, A6, A8, A14 that can be used for each aspherical mirror S1 to S14 in Example 1. 10 A 12 A 14 A 16 A 18 A 20 A 22 A 24 A 26 A 28 and A 30 .

[0095] Face number A4 A6 A8 A10 A12 A14 A16 S1 -1.4121E-03 1.9916E-03 -1.0778E-03 3.6502E-04 -8.5409E-05 1.4209E-05 -1.6980E-06 S2 -3.9730E-03 4.1195E-03 -2.1080E-03 7.0402E-04 -1.6295E-04 2.6556E-05 -3.0651E-06 S3 -3.5213E-03 1.9780E-03 -7.9261E-04 2.0533E-04 -3.3292E-05 2.7886E-06 3.4410E-08 S4 -1.7442E-03 5.7021E-04 -1.5796E-04 8.7181E-06 9.8306E-06 -3.9923E-06 8.1566E-07 S5 -1.8402E-05 -3.0221E-04 2.0830E-04 -9.4482E-05 2.9043E-05 -6.2795E-06 9.7510E-07 S6 3.9785E-03 -1.1093E-03 2.0713E-04 7.8459E-06 -1.8077E-05 5.9908E-06 -1.1696E-06 S7 3.5804E-02 -1.4394E-02 5.5107E-03 -1.6565E-03 3.8106E-04 -6.6772E-05 8.8442E-06 S8 3.2717E-02 -1.2023E-02 4.2609E-03 -1.1377E-03 2.2435E-04 -3.1798E-05 2.9896E-06 S9 2.4777E-02 -2.4128E-02 1.3666E-02 -5.5249E-03 1.6788E-03 -3.8462E-04 6.5932E-05 S10 4.1657E-02 -4.0923E-02 2.5043E-02 -1.0895E-02 3.5224E-03 -8.5403E-04 1.5542E-04 S11 2.1600E-02 -2.1372E-02 1.4091E-02 -6.6441E-03 2.3105E-03 -6.0056E-04 1.1728E-04 S12 9.1717E-04 -8.4762E-04 5.2191E-04 -2.3253E-04 7.1012E-05 -1.5268E-05 2.3418E-06 S13 -1.0003E-03 3.8213E-03 -2.7825E-03 1.2274E-03 -3.6333E-04 7.5655E-05 -1.1380E-05 S14 -1.2285E-03 3.3395E-03 -2.1659E-03 8.5345E-04 -2.2614E-04 4.2233E-05 -5.7083E-06

[0096] Table 2-1

[0097]

[0098]

[0099] Table 2-2

[0100] Example 2

[0101] The following is for reference Figure 4 Describes an optical imaging lens according to Embodiment 2 of this application.

[0102] like Figure 4As shown, in this embodiment, the optical imaging lens includes a first lens barrel PA, a second lens barrel PB, and a third lens barrel PC. A first lens group, including a first lens E1 and a second lens E2, is assembled in the first lens barrel PA. A second lens group, including a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6, is assembled in the second lens barrel PB. A third lens group, including a seventh lens E7, is assembled in the third lens barrel PC. The first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, and seventh lens E7 are arranged sequentially along the optical axis from the object side to the image side. The optical imaging lens also includes a plurality of support members: a first support member P1, located between a first lens E1 and a second lens E2, with its image-side surface at least partially in contact with the object-side surface of the second lens E2; a third support member P3, located between a third lens E3 and a fourth lens E4, with its image-side surface at least partially in contact with the object-side surface of the fourth lens E4; a fourth auxiliary support member P4b, located on the image-side surface of the fourth lens E4, with its object-side surface at least partially in contact with the image-side surface of the fourth lens E4; a fourth support member P4, located between the fourth auxiliary support member P4b and a fifth lens E5, with its image-side surface at least partially in contact with the object-side surface of the fifth lens E5; and a fifth support member P5, located between the fifth lens E5 and a sixth lens E6, with its image-side surface at least partially in contact with the object-side surface of the sixth lens E6.

[0103] The structure of the optical imaging lens in this embodiment is the same as that of the optical imaging lens in Embodiment 1. That is, the basic parameter table of the optical imaging lens in this embodiment is the same as that in Table 1, and the table of higher-order coefficients of the aspherical mirror is the same as that in Tables 2-1 and 2-2.

[0104] The difference between this embodiment and Embodiment 1 lies in the structural dimensions of the lens barrel and the supporting components, as well as the spacing of some supporting components along the optical axis. The values ​​of several parameters related to the lens barrel and supporting components in the optical imaging lenses of this embodiment and Embodiment 1 are shown in Table 5 below. These parameters specifically include: the maximum height LA ​​of the first lens barrel, the maximum height LB of the second lens barrel, the maximum height L along the optical axis from the object-side end face of the first lens barrel to the image-side end face of the third lens barrel, the inner diameter d1s of the object-side surface of the first supporting component P1, the inner diameter d3s of the object-side surface of the third supporting component P3, the inner diameter d3m of the image-side surface of the third supporting component P3, and the inner diameter d3m of the image-side surface of the fifth supporting component P5. The inner diameter of the side surface is d5m; the outer diameter of the image side surface of the fifth support member P5 is D5m; the minimum inner diameter of the object side end of the third lens tube PC is dcs; the minimum inner diameter of the image side end of the third lens tube PC is dcm; the distance on the optical axis from the image side surface of the first lens tube PA to the object side surface of the second lens tube PB is EPAB; the distance on the optical axis from the image side surface of the second lens tube PB to the object side surface of the third lens tube PC is EPBC; the distance on the optical axis from the image side surface of the third support member P3 to the object side surface of the fourth support member P4 is EP34; the distance on the optical axis from the image side surface of the fourth support member P4 is... The distance EP45 from the image side to the object side of the fifth support P5 on the optical axis; the maximum thickness CP3 of the third support P3; the maximum thickness CP3b of the third auxiliary support P3b; the maximum thickness CP4 of the fourth support P4; the maximum thickness CP4b of the fourth auxiliary support P4b; the axial distance SAG21 from the intersection of the object side of the second lens and the optical axis to the vertex of the non-transparent portion of the object side of the second lens; the axial distance SAG21 from the intersection of the image side of the second lens and the optical axis to the vertex of the non-transparent portion of the image side of the second lens. The distances SAG22, SAG31, SAG41, SAG42, SAG42, and SAG51 are all measured in Table 5. The values ​​for all parameters shown in Table 5 are in millimeters (mm). The diagrams illustrating the structural features of the optical imaging lens are as follows: Figure 1 and Figure 2 As shown.

[0105] Example 3

[0106] The following is for reference Figure 5 Describes an optical imaging lens according to Embodiment 3 of this application.

[0107] like Figure 5As shown, in this embodiment, the optical imaging lens includes a first lens barrel PA, a second lens barrel PB, and a third lens barrel PC. A first lens group, including a first lens E1 and a second lens E2, is assembled in the first lens barrel PA. A second lens group, including a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6, is assembled in the second lens barrel PB. A third lens group, including a seventh lens E7, is assembled in the third lens barrel PC. The first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, and seventh lens E7 are arranged sequentially along the optical axis from the object side to the image side. The optical imaging lens also includes a plurality of support members: a first support member P1, located between a first lens E1 and a second lens E2, with its image-side surface at least partially in contact with the object-side surface of the second lens E2; a third support member P3, located between a third lens E3 and a fourth lens E4, with its image-side surface at least partially in contact with the object-side surface of the fourth lens E4; a fourth auxiliary support member P4b, located on the image side of the fourth lens E4, with its object-side surface at least partially in contact with the image-side surface of the fourth lens E4; a fourth support member P4, located between a fourth lens E4 and a fifth lens E5, with its image-side surface at least partially in contact with the object-side surface of the fifth lens E5; and a fifth support member P5, located between a fifth lens E5 and a sixth lens E6, with its image-side surface at least partially in contact with the object-side surface of the sixth lens E6.

[0108] The structure of the optical imaging lens in this embodiment is the same as that of the optical imaging lens in Embodiment 1. That is, the basic parameter table of the optical imaging lens in this embodiment is the same as that in Table 1, and the table of higher-order coefficients of the aspherical mirror is the same as that in Tables 2-1 and 2-2.

[0109] The difference between this embodiment and Embodiment 1 lies in the structural dimensions of the lens barrel and the bearing components, as well as the spacing of some bearing components along the optical axis. The values ​​of various parameters related to the lens barrel and bearing components in the optical imaging lenses of this embodiment and Embodiment 1 are shown in Table 5 below. The specific descriptions of these parameters are the same as those in Embodiment 2 above, and will not be repeated here.

[0110] Figure 6 The on-axis chromatic aberration curves of the optical imaging lenses of Embodiments 1, 2 and 3 are shown, which represent the deviation of light of different wavelengths from the convergence focal point after passing through the lens. Figure 7 The astigmatism curves of the optical imaging lenses of Embodiments 1, 2 and 3 are shown, which represent the meridional image plane curvature and the sagittal image plane curvature. Figure 8 The distortion curves of the optical imaging lenses of Embodiments 1, 2, and 3 are shown, representing the distortion magnitude values ​​corresponding to different image heights. According to... Figures 6 to 8 It can be seen that the optical imaging lenses given in Examples 1, 2 and 3 can achieve good imaging quality.

[0111] Example 4

[0112] The following is for reference Figure 9 Describes an optical imaging lens according to Embodiment 4 of this application.

[0113] like Figure 9 As shown, in this embodiment, the optical imaging lens includes a first lens barrel PA, a second lens barrel PB, and a third lens barrel PC. A first lens group, including a first lens E1 and a second lens E2, is assembled in the first lens barrel PA. A second lens group, including a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6, is assembled in the second lens barrel PB. A third lens group, including a seventh lens E7, is assembled in the third lens barrel PC. The first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, and seventh lens E7 are arranged sequentially along the optical axis from the object side to the image side.

[0114] In this embodiment, the optical imaging lens further includes a plurality of support members: a first support member P1, located between the first lens E1 and the second lens E2, with its image-side surface at least partially in contact with the object-side surface of the second lens E2; a third auxiliary support member P3b, located on the image-side of the third lens E3, with its object-side surface at least partially in contact with the image-side surface of the third lens E3; a third support member P3, located between the third lens E3 and the fourth lens E4 (more specifically between the third auxiliary support member P3b and the fourth lens E4), with its image-side surface at least partially in contact with the object-side surface of the fourth lens E4; a fourth auxiliary support member P4b, located on the image-side of the fourth lens E4, with its object-side surface at least partially in contact with the image-side surface of the fourth lens E4; a fourth support member P4, located between the fourth lens E4 and the fifth lens E5, with its image-side surface at least partially in contact with the object-side surface of the fifth lens E5; and a fifth support member P5, located between the fifth lens E5 and the sixth lens E6, with its image-side surface at least partially in contact with the object-side surface of the sixth lens E6.

[0115] In this embodiment, the first lens E1 has negative optical power, with its object-side surface S1 being concave and its image-side surface S2 being concave. The second lens E2 has positive optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens E3 has positive optical power, with its object-side surface S5 being convex and its image-side surface S6 being convex. The fourth lens E4 has positive optical power, with its object-side surface S7 being convex and its image-side surface S8 being convex. The fifth lens E5 has positive optical power, with its object-side surface S9 being convex and its image-side surface S10 being concave. The sixth lens E6 has negative optical power, with its object-side surface S11 being concave and its image-side surface S12 being concave. The seventh lens E7 has positive optical power, with its object-side surface S13 being convex and its image-side surface S14 being concave.

[0116] In this embodiment, the optical imaging lens may further include, for example, a filter (not shown in the figure) located on the image side of the seventh lens E7, having an object side S15 and an image side S16, and an imaging surface S17 (not shown in the figure) located on the image side of the filter. Light from the object may, for example, pass through each surface S1 to S16 in sequence and finally be imaged on the imaging surface S17.

[0117] Table 3 shows the basic parameters of the optical imaging lens of Example 4, where the units for radius of curvature and thickness / distance are millimeters (mm).

[0118]

[0119] Table 3

[0120] In this embodiment, the object-side surface and image-side surface of any one of the first lens E1 to the seventh lens E7 are aspherical surfaces. The shape of each aspherical surface can be defined by formula (1) given in embodiment 1 above. Tables 4-1 and 4-2 show the higher-order coefficients A4, A6, A8, and A6 that can be used for each aspherical mirror surface S1 to S14 in this embodiment. 10 A 12 A 14 A 16 A 18 A 20 A 22 A 24 A 26 A 28 and A 30 .

[0121]

[0122]

[0123] Table 4-1

[0124] Face number A18 A20 A22 A24 A26 A28 A30 S1 -3.7687E-09 1.4922E-09 -1.4306E-10 7.6825E-12 -2.4870E-13 4.5556E-15 -3.6479E-17 S2 3.0758E-07 -2.6757E-08 1.7324E-09 -8.0168E-11 2.4906E-12 -4.6355E-14 3.8970E-16 S3 5.6624E-08 -5.8170E-09 4.4379E-10 -2.3533E-11 8.1437E-13 -1.6518E-14 1.4901E-16 S4 -5.3639E-08 5.2105E-09 -3.4552E-10 1.5577E-11 -4.5782E-13 7.9193E-15 -6.1165E-17 S5 7.5376E-08 -5.2087E-09 2.5513E-10 -8.6369E-12 1.9189E-13 -2.5134E-15 1.4682E-17 S6 -2.0108E-07 1.1880E-08 -5.0395E-10 1.4956E-11 -2.9488E-13 3.4716E-15 -1.8480E-17 S7 1.1188E-07 -1.3145E-08 9.1416E-10 -4.0539E-11 1.1301E-12 -1.8123E-14 1.2785E-16 S8 5.1238E-08 -1.5762E-08 1.5450E-09 -8.6218E-11 2.8962E-12 -5.4744E-14 4.4929E-16 S9 -1.5222E-07 -1.5145E-08 2.6647E-09 -1.8784E-10 7.3778E-12 -1.5800E-13 1.4439E-15 S10 -1.2546E-05 1.1944E-06 -8.2697E-08 4.0407E-09 -1.3188E-10 2.5775E-12 -2.2795E-14 S11 -1.2412E-05 1.2174E-06 -8.6938E-08 4.3859E-09 -1.4790E-10 2.9875E-12 -2.7311E-14 S12 -9.4701E-06 1.1507E-06 -1.0240E-07 6.5142E-09 -2.8121E-10 7.3855E-12 -8.8981E-14 S13 1.9804E-08 -9.6655E-10 2.2446E-11 3.3639E-13 -3.9635E-14 1.0803E-15 -1.0709E-17 S14 3.3019E-08 -3.1423E-09 2.2564E-10 -1.1586E-11 3.9659E-13 -8.0487E-15 7.2962E-17

[0125] Table 4-2

[0126] Example 5

[0127] The following is for reference Figure 10 Describes an optical imaging lens according to Embodiment 5 of this application.

[0128] like Figure 10As shown, in this embodiment, the optical imaging lens includes a first lens barrel PA, a second lens barrel PB, and a third lens barrel PC. A first lens group, including a first lens E1 and a second lens E2, is assembled in the first lens barrel PA. A second lens group, including a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6, is assembled in the second lens barrel PB. A third lens group, including a seventh lens E7, is assembled in the third lens barrel PC. The first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, and seventh lens E7 are arranged sequentially along the optical axis from the object side to the image side. The optical imaging lens also includes a plurality of support members: a first support member P1, located between a first lens E1 and a second lens E2, with its image-side surface at least partially in contact with the object-side surface of the second lens E2; a third auxiliary support member P3b, located on the image-side surface of a third lens E3, with its object-side surface at least partially in contact with the image-side surface of the third lens E3; a third support member P3, located between a third lens E3 and a fourth lens E4, with its image-side surface at least partially in contact with the object-side surface of the fourth lens E4; a fourth auxiliary support member P4b, located on the image-side surface of the fourth lens E4, with its object-side surface at least partially in contact with the image-side surface of the fourth lens E4; a fourth support member P4, located between a fourth lens E4 and a fifth lens E5, with its image-side surface at least partially in contact with the object-side surface of the fifth lens E5; and a fifth support member P5, located between a fifth lens E5 and a sixth lens E6, with its image-side surface at least partially in contact with the object-side surface of the sixth lens E6.

[0129] The structure of the optical imaging lens in this embodiment is the same as that of the optical imaging lens in embodiment 4. That is, the basic parameter table of the optical imaging lens in this embodiment is the same as that in Table 3, and the table of higher-order coefficients of the aspherical mirror is the same as that in Tables 4-1 and 4-2.

[0130] The difference between this embodiment and embodiment 4 lies in the structural dimensions of the lens barrel and some of the supporting components, as well as the spacing of some of the supporting components along the optical axis. The values ​​of various parameters related to the lens barrel and supporting components in the optical imaging lenses of this embodiment and embodiment 4 are shown in Table 5 below. The specific descriptions of these parameters are the same as those in embodiment 2 above, and will not be repeated here.

[0131] Example 6

[0132] The following is for reference Figure 11 Describes an optical imaging lens according to Embodiment 6 of this application.

[0133] like Figure 11As shown, in this embodiment, the optical imaging lens includes a first lens barrel PA, a second lens barrel PB, and a third lens barrel PC. A first lens group, including a first lens E1 and a second lens E2, is assembled in the first lens barrel PA. A second lens group, including a third lens E3, a fourth lens E4, a fifth lens E5, and a sixth lens E6, is assembled in the second lens barrel PB. A third lens group, including a seventh lens E7, is assembled in the third lens barrel PC. The first lens E1, second lens E2, third lens E3, fourth lens E4, fifth lens E5, sixth lens E6, and seventh lens E7 are arranged sequentially along the optical axis from the object side to the image side. The optical imaging lens also includes a plurality of support members: a first support member P1, located between a first lens E1 and a second lens E2, with its image-side surface at least partially in contact with the object-side surface of the second lens E2; a third auxiliary support member P3b, located on the image-side surface of a third lens E3, with its object-side surface at least partially in contact with the image-side surface of the third lens E3; a third support member P3, located between a third lens E3 and a fourth lens E4, with its image-side surface at least partially in contact with the object-side surface of the fourth lens E4; a fourth auxiliary support member P4b, located on the image-side surface of the fourth lens E4, with its object-side surface at least partially in contact with the image-side surface of the fourth lens E4; a fourth support member P4, located between a fourth lens E4 and a fifth lens E5, with its image-side surface at least partially in contact with the object-side surface of the fifth lens E5; and a fifth support member P5, located between a fifth lens E5 and a sixth lens E6, with its image-side surface at least partially in contact with the object-side surface of the sixth lens E6.

[0134] The structure of the optical imaging lens in this embodiment is the same as that of the optical imaging lens in embodiment 4. That is, the basic parameter table of the optical imaging lens in this embodiment is the same as that in Table 3, and the table of higher-order coefficients of the aspherical mirror is the same as that in Tables 4-1 and 4-2.

[0135] The difference between this embodiment and embodiment 4 lies in the structural dimensions of the lens barrel and some of the supporting components, as well as the spacing of some of the supporting components along the optical axis. The values ​​of various parameters related to the lens barrel and supporting components in the optical imaging lenses of this embodiment and embodiment 4 are shown in Table 5 below. The specific descriptions of these parameters are the same as those in embodiment 2 above, and will not be repeated here.

[0136] Figure 12 The on-axis chromatic aberration curves of the optical imaging lenses of Embodiments 4, 5 and 6 are shown, which represent the deviation of light of different wavelengths from the convergence focal point after passing through the lens. Figure 13 The astigmatism curves of the optical imaging lenses of Examples 4, 5 and 6 are shown, which represent the meridional image plane curvature and the sagittal image plane curvature. Figure 14 The distortion curves for Examples 4, 5, and 6 are shown, representing the distortion magnitude values ​​corresponding to different image heights. According to... Figures 12 to 14It can be seen that the optical imaging lenses given in Examples 4, 5 and 6 can achieve good imaging quality.

[0137]

[0138]

[0139] Table 5

[0140] Furthermore, in Examples 1 to 6, the effective focal length values ​​f1 to f7 of each lens, the effective focal length F1 of the first lens group, the effective focal length F2 of the second lens group, the effective focal length F3 of the third lens group, the effective focal length f of the optical imaging lens, the entrance pupil diameter EPD of the optical imaging lens, and half the diagonal length Imgh of the effective pixel area on the imaging surface of the optical imaging lens are shown in Table 6 below.

[0141] Parameters / Examples 1 2 3 4 5 6 f1(mm) -14.14 -14.14 -14.14 -10.88 -10.88 -10.88 f2 (mm) 36.63 36.63 36.63 45.57 45.57 45.57 f3 (mm) 8.24 8.24 8.24 16.47 16.47 16.47 f4 (mm) -20.25 -20.25 -20.25 15.17 15.17 15.17 f5 (mm) 63.38 63.38 63.38 15.41 15.41 15.41 f6 (mm) 2868.06 2868.06 2868.06 -7.24 -7.24 -7.24 f7 (mm) -23.73 -23.73 -23.73 47.51 47.51 47.51 F1 (mm) -23.19 -23.19 -23.19 -13.80 -13.80 -13.80 F2 (mm) 11.99 11.99 11.99 8.94 8.94 8.94 F3 (mm) -23.73 -23.73 -23.73 47.51 47.51 47.51 f(mm) 26.74 26.74 26.74 21.30 21.30 21.30 EPD (mm) 6.35 6.35 6.35 5.66 5.66 5.66 Imgh(mm) 5.32 5.32 5.32 4.20 4.20 4.20

[0142] Table 6 shows that Examples 1 to 6 satisfy the conditions shown in Table 7 below.

[0143]

[0144]

[0145] Table 7

[0146] This application also provides an imaging device equipped with an electronic photosensitive element for imaging. The electronic photosensitive element can be a charge-coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) device. The imaging device can be a standalone imaging device such as a digital camera, or an imaging module integrated into a mobile electronic device such as a mobile phone. The imaging device is equipped with the optical imaging lens described above.

[0147] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of protection involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the concept of this application. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An optical imaging lens, characterized in that, It includes an aperture stop, a first lens group, a second lens group, and a third lens group arranged sequentially along the optical axis from the object side to the image side, and also includes multiple support components. The first lens group is housed in the first lens barrel and includes a first lens and a second lens. The first lens has negative optical power and the second lens has positive optical power. The second lens group is housed in the second lens barrel and includes a third lens, a fourth lens, a fifth lens, and a sixth lens, wherein the third lens and the fifth lens have positive optical power; The third lens group is housed within the third lens barrel, including a seventh lens; and The fourth lens and the seventh lens have negative optical power; or... The fourth lens and the seventh lens have positive optical power, and the sixth lens has negative optical power; The first lens to the seventh lens are arranged sequentially from the object side to the image side along the optical axis; The object-side surface of the first lens is concave, and the image-side surface is also concave. The object-side surface of the second lens is convex, and the image-side surface is concave. The object-side surface of the third lens is convex, and the image-side surface is also convex. The image-side surface of the fourth lens is convex. The object-side surface of the sixth lens is concave; The object-side surface of the fifth lens and the seventh lens is concave, and the image-side surface is convex; or, the object-side surface is convex, and the image-side surface is concave. The optical imaging lens has seven lenses with optical power. The plurality of bearing members include: a third bearing member located between the third lens and the fourth lens, wherein its image-side surface at least partially contacts the object-side surface of the fourth lens; a fourth bearing member located between the fourth lens and the fifth lens, wherein its image-side surface at least partially contacts the object-side surface of the fifth lens; a fourth auxiliary bearing member located between the fourth lens and the fifth lens, wherein its image-side surface at least partially contacts the object-side surface of the fourth bearing member; and The optical imaging lens satisfies: -1.55≤(CP4+CP4b) / (SAG42+SAG51)≤0.78, 1.69≤|f4 / F2|≤1.70, 0.68≤LB / F2≤1.01, and 0.77≤EP34 / |SAG41+SAG42|≤1.82, Wherein, CP4 is the center thickness of the fourth support member, CP4b is the center thickness of the fourth auxiliary support member, SAG42 is the axial distance from the intersection of the image-side surface of the fourth lens and the optical axis to the vertex of the non-transparent portion of the image-side surface of the fourth lens, SAG51 is the axial distance from the intersection of the object-side surface of the fifth lens and the optical axis to the vertex of the non-transparent portion of the object-side surface of the fifth lens, F2 is the combined focal length of the second lens group, f4 is the effective focal length of the fourth lens, LB is the maximum height of the second lens barrel, EP34 is the distance on the optical axis from the image-side surface of the third support member to the object-side surface of the fourth support member, and SAG41 is the axial distance from the intersection of the object-side surface of the fourth lens and the optical axis to the vertex of the non-transparent portion of the object-side surface of the fourth lens.

2. The optical imaging lens according to claim 1, characterized in that, The plurality of supporting members further includes: a first supporting member located between the first lens and the second lens, wherein its image side surface is at least partially in contact with the object side surface of the second lens; The inner diameter d1s of the object side of the first bearing member, the effective focal length f1 of the first lens, and the effective focal length f2 of the second lens satisfy the following: 0.2 <d1s / (f1+f2)<0.4。 3. The optical imaging lens according to claim 1, characterized in that, The center thickness CT1 of the first lens on the optical axis, the center thickness CT2 of the second lens on the optical axis, and the maximum height LA ​​of the first lens barrel satisfy the following: 0.47≤(CT1+CT2) / LA<0.

5.

4. The optical imaging lens according to claim 1, characterized in that, The inner diameter d3s of the object side of the third support member, the effective focal length f3 of the third lens, the inner diameter d3m of the image side of the third support member, and the effective focal length f4 of the fourth lens satisfy the following: 0.63≤d3s / f3+d3m / f4≤1.

14.

5. The optical imaging lens according to claim 1, characterized in that, The plurality of supporting members further includes: a third auxiliary supporting member, located between the third lens and the fourth lens, wherein its image side surface is at least partially in contact with the object side surface of the third supporting member; The center thickness CP3 of the third support member, the center thickness CP3b of the third auxiliary support member, the center thickness CT3 of the third lens on the optical axis, and the center thickness CT4 of the fourth lens on the optical axis satisfy the following: 0.1<(CP3+CP3b) / (CT3+CT4)≤0.

32.

6. The optical imaging lens according to claim 1, characterized in that, The plurality of supporting members further includes: a fifth supporting member, located between the fifth lens and the sixth lens, wherein its image side is at least partially in contact with the object side of the sixth lens; The outer diameter D5m of the image side of the fifth support member, the inner diameter d5m of the image side of the fifth support member, and the effective radius DT61 of the light-transmitting part of the object side of the sixth lens satisfy the following: 0.40≤(D5m-d5m) / DT61<1.

7. The optical imaging lens according to claim 1, characterized in that, The optical power of the first lens group is negative, and the optical power of the second lens group is positive. The maximum height L of the first lens barrel from the object-side end face to the image-side end face of the third lens barrel on the optical axis, the combined focal length F1 of the first lens group, and the combined focal length F3 of the third lens group satisfy the following: -0.62≤L / (F1+F2+F3)≤0.

43.

8. The optical imaging lens according to claim 1, characterized in that, The plurality of supporting members further includes: a fifth supporting member, located between the fifth lens and the sixth lens, wherein its image side is at least partially in contact with the object side of the sixth lens; The distance EP45 between the image-side surface of the fourth support member and the object-side surface of the fifth support member on the optical axis, the center thickness CT5 of the fifth lens on the optical axis, and the Abbe number V5 of the fifth lens satisfy the following: 23.12≤EP45 / CT5×V5≤41.

84.

9. The optical imaging lens according to claim 1, characterized in that, The distance EPAB between the image-side surface of the first lens barrel and the object-side surface of the second lens barrel on the optical axis, the air gap T23 between the second lens and the third lens on the optical axis, the distance EPBC between the image-side surface of the second lens barrel and the object-side surface of the third lens barrel on the optical axis, and the air gap T67 between the sixth lens and the seventh lens on the optical axis satisfy the following: 2.14≤EPAB / T23+EPBC / T67≤5.

46.

10. The optical imaging lens according to claim 1, characterized in that, The distance EPAB between the image-side surface of the first lens barrel and the object-side surface of the second lens barrel on the optical axis, the axial distance SAG22 between the intersection of the image-side surface of the second lens and the optical axis and the vertex of the non-transparent portion of the image-side surface of the second lens, and the axial distance SAG31 between the intersection of the object-side surface of the third lens and the optical axis and the vertex of the non-transparent portion of the object-side surface of the third lens satisfy the following: 0.2 <EPAB / (SAG22+SAG31)≤0.68。 11. The optical imaging lens according to any one of claims 1 to 10, characterized in that, The minimum inner diameter dcs of the object-side end of the third lens barrel, the radius of curvature R13 of the object-side surface of the seventh lens, the minimum inner diameter dcm of the image-side end of the third lens barrel, and the radius of curvature R14 of the image-side surface of the seventh lens satisfy the following: -0.95≤dcs / R13≤0.75, and -0.35≤dcm / R14<0.

6.

12. The optical imaging lens according to any one of claims 1 to 10, characterized in that, The combined focal length F1 of the first lens group and the maximum height LA ​​of the first lens barrel on the optical axis satisfy the following: -7.86≤F1 / LA≤-3.

59.

13. The optical imaging lens according to any one of claims 1 to 10, characterized in that, The optical imaging lens can be focused by changing the air gap between the second lens and the third lens on the optical axis, and the air gap between the sixth lens and the seventh lens on the optical axis.

Images